Pump.



S. A. STONE.

vPUMP.

APPLICATION FILED IuNE 5.1914,

Put

@ma Feb. 8,1916.

PUMP.

Specification of Letters Patent.

Patented Feb. 8, 1916.

Application led June 5, 1914. Serial No. 843,196.

My invention relates to pumps, and the main object thereof is to provide a plurality of plungers in one cylinder in orderto increase the pump capacity for glven diameters.

A further object is to actuate said lungers independently, and in opposite irections at different times, by any suitable means a further object is to telescope the stems for the said plungers, one within another, but in such manner as to be independently operable. A further object is to provide suitable valves for the plungers which open freely on the downward plungerA movement, but which close on the upward movement thereof. e

A further object is to provide such a pump which dispenses with check valves.

A further obJect is to provide a pump with reciprocating plungers,'which delivers a steady How of water in the manner of a centrifugal pump; and further objects are to provide such pumps which are simple in construction, assembling, installation and use, which are several times as efficient as pumps as heretofore constructed of the same dimensions, and which are comparatively inexpensive.

My invention is fully described in the following specification, of which the accompanying drawings form a part, in which the separate parts are designated by the same reference characters in each of the views, and in which Figure 1 is a view of a pump constructed in accordance with my present invention, the cylinder being in section, and one form of plunger operating means being shown; Fig. 2 is an enlarged, fragmentary, sectional, view of the cylinder and plungers, and showing the method of operating three plungers; and Fig. 3 is a view of a detail of the operating means. e

In the drawings forming a part of this application I have shown a cylinder 5, having a cap 6 at the upper end thereof provided with three packing boxes 7, 8,. and 9, and an outlet pipe 10 which may belpro videdy withl any suitable control means, a

valve being shown at 11, and at the bottom of the cylinder is a union 12 to join other pipes or cylindersv thereto.

`Passing through the packing-boX-7 is a rod 13 connected, detachably, with a plug 14 threaded into an elbowl 15 in turn connected with a section of tubing 16 in turn mounted on a sleeve 17 which also has a disk 18 and a tubular section 19 thereon, and being shouldered as shown at 20 to form a seat for a plunger head 21 having suitable perforations or ports therethrough, the tubular section holding said head in place., and the tubular Asection 16, being threaded on the sleeve 17, holding the disk 18 and tubular section 19 in place, and slidably mounted on the tubular section 16 is disk-valve 22 normally forced against the upper surface lof theplunger head 21 by means of a spring 23 of sufficient strength to prevent the said valve from sticking, and maintain the same over the ports of the plunger head under normal conditions.

Threaded into the plunger head is a bell 24' which fits the cylinder interior closely and around`whi'ch is a collar 25, flexible washers 26 and 27 being held on said bell by thev flange thereon and by said collar, as clearly shown in Fig. 2, the ends of said bell being open to therethrough.

Slidably arranged in the sleeve 17 is a tubular stem 28 which carries a T-connection adjacent its upper end, shown at 29, and to which is connected an elbow 30 having a plug 31 threaded thereinto and into which is threaded a rod 32 slidable in the packing-box 8, and said tubular stem 28 is connected at its lower end with a union 33 connected with another length 31 of the tubular stem and which is flanged at its bottom to form a shoulder serving as a support for a plunger head 35, a short tubular sec.- tion 36 holding said head in place, whereas the union 33 yholds the section 36 in place,

as well as a disk 37, and I provide a diskvalve 38 for the head 35 and normally held against the upper surface thereof by means of a spring 39, said valve being slidable on the section 36.

A bell 40 is threaded into the plunger head 35 and a collar 11 and washers 42 and 43 mounted thereon in the manner already described with reference to the plunger head 21, and said head 35 is also provided permit thefree flow of water Q armere with suitable ports, and it will be seen from the foregoing that the plungers already described may be independently operated.

Slidable in t-he tubular stem 28 is a rod 44 which passes through .the packing-box 9, and at its lower end is reduced in diameter and screw-threaded to engage a nut 45, serving to hold a plunger head 46 and sleeve 47 in place, a disk-valve 48 being slidable on said sleeve and normally forced against the ports in the head 46 by means of a spring 49, and I also employ a bell 50, washers 5l and 52, and collar 53 in the manner described with reference to the two other plunger heads 21 and 35, and at the lower end of the cylinder 5, in which said plungers operate, is a sand valve 54, of any desired form, and I also provide a disk 55 on the reduced por tion of the rod 44 against which the spring 49 bears.

The plunger stem rods 13, 32, and 44 are4 in pivotal connection with links 56, 57, and 58, respectively, and which arefin turn pivoted to corresponding parallel lever frames 59, 60, and G1, connected with a pivot 62 common to all and carried by a suitable support 63, said frames being oscillated by means of eccentric disks 64, 65,-and 66 on a shaft 67 common to all, and arranged thereon at an angle of 120 degrees from each other, in the form shown, said shaft being rotated by means of a spur-gear 68 thereon, a pinion 69 on a power shaft 70, a pulley 7l thereon, and a belt 72, or in other desired manner.

lt will bev seen by this arrangement that the plunger rods 13, 32, and 44 are reciprocated in the cylinder 5, but in directions and at periods independent of each other, governed by the cam arrangement, whereby there is one plunger moving up at all times,

one moving down, and one alternating be` tween the same, in this manner having two plungers approaching each other so that the fluid being carried upwardly by one 1s forced into the space above the downwardly moving plunger, and giving ya double quantity of fluid for each plunger operation, resulting in a Ycorrespondingly increased delivery and, also, because of this plunger movement. delivering a constant flow through the discharge pipe l0.`

'llhe lower plunger in its downward movelment passes through Huid raised by the vacuum produced by one or the other of the plungers thereover in its upward movement, and, when the lower plunger rises, 'a quantity of fluid is raised thereby' and which passes through the intermediate plunger which is beginning to descend andwhen the intermediate plunger rises, the upper plunger is beginning its descent and receives theyfluid therefrom, whence it is carried to the discharge pipe, and this operation continues with the above results. The main feature which makes this operation possible is the` telescoped arrangement of the plunger stems permitting independent plunger operation, although l broadly claim the feature of the independently operable plurality of plungers, irrespective of their number or arrangement, whereby l secure the advantages of a. rapidly operated centrifugal pump in a slowly operating reciprocating plunger pump, and my pump, in smaller sizes, may he manually operated, thereby adapting tho same for use on farms, in factories, homes, and other places, and my pump is relatively easy in operation as the plunger movements are balanced to a certain degree.A y

My plungers and operating stems may be Iarranged in any suitable pipe, or combination of pipe lengths, and the plunger stems may be actuated in any desired manner, as l do not limit myself tothe specific manner shown, nor indeed to any other manner, neither do l limit myself to the exact det-ail construction of the individual plungers, as many forms thereof would be possible in design and, while l do specifically claim the telescoped arrangement of plunger stems as the simplest, most practical, and most economical, method, still other methods may suggest themselves and still be within the scope of the following claims and, reserving the right to all changes in and modifications of `the form shown and described,

What l claim as new and desire to secure by Letters Patent, is zl. A. pump comprising a. cylinder, a plu'- rality ofplungers, a rod connected with one of said plungers, a hollow stem telescoping on the said rod, a shoulderformed on the hollow stem, a plunger having its head supported on said shoulder, means for holding said head in place on lthe shoulder, a pipe .connection secured on the upper end of said hollow stem, a rod connected with the said pipe connection and means connected with the rods for actuating said plungers.

2. A pump comprising a cylinder, a piura-lity of plunger-s in said cylinder, a rod .connected with one of the plungers, tubular stems telescoping on each other, and on 'the .said rod, the tubular stems being shouldered forming seats for the heads of the plungers carried by said stems, a tubular section on each'tubular stem for holding the plunger head in place on said shoulder, a tubula section on the upper end of each tubular stem, 'upwardly extending rods secured to said tubular sections, and means connected with the said rods for actuating the several plungers.

3. A. pump comprising a cylinder, a plurality of plungers in said cylinder, a rod connected with one of said plungers and extending upward beyond the top of the nding upward above and means connected r actuating the plun- 15 each other. of I have signed my ion in the presence of ',ses.

i ALLEN STONE. v

REYNOLDS, )LPIL cylinder, a plurality of tubular stems tele- I scoping with each other and with the said lvalves for the plungers, the valves'for the plungers of the tubular stems being slidably mounted on the said tubular sections, a tubular section on the upper end of each tubular stem, rods connected with the tubular sections and eXte the top of the cylinder With the said rods fo gers independently of "In testimony Where name tothis specificat the subscribing Witnef SPENCEI Witnesses ROBERT EDGAR l PRESTON RAND( 

